From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932260AbeBSUa4 (ORCPT ); Mon, 19 Feb 2018 15:30:56 -0500 Received: from vern.gendns.com ([206.190.152.46]:58431 "EHLO vern.gendns.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753648AbeBSUWo (ORCPT ); Mon, 19 Feb 2018 15:22:44 -0500 From: David Lechner To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland , Sekhar Nori , Kevin Hilman , Bartosz Golaszewski , Adam Ford , linux-kernel@vger.kernel.org, David Lechner Subject: [PATCH v7 05/42] clk: davinci: Add platform information for TI DM355 PLL Date: Mon, 19 Feb 2018 14:21:26 -0600 Message-Id: <1519071723-31790-6-git-send-email-david@lechnology.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1519071723-31790-1-git-send-email-david@lechnology.com> References: <1519071723-31790-1-git-send-email-david@lechnology.com> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds platform-specific declarations for the PLL clocks on TI DM355 based systems. Signed-off-by: David Lechner --- v7 changes: - split registration functions for each PLL - Add platform_device_id lookup v6 changes: - Added dm355_pll{1,2}_info with controller-specific information - Add empty lines between function calls drivers/clk/davinci/Makefile | 1 + drivers/clk/davinci/pll-dm355.c | 75 +++++++++++++++++++++++++++++++++++++++++ drivers/clk/davinci/pll.c | 2 ++ drivers/clk/davinci/pll.h | 3 ++ 4 files changed, 81 insertions(+) create mode 100644 drivers/clk/davinci/pll-dm355.c diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile index 13049d4..6720bd0 100644 --- a/drivers/clk/davinci/Makefile +++ b/drivers/clk/davinci/Makefile @@ -4,4 +4,5 @@ ifeq ($(CONFIG_COMMON_CLK), y) obj-y += pll.o obj-$(CONFIG_ARCH_DAVINCI_DA830) += pll-da830.o obj-$(CONFIG_ARCH_DAVINCI_DA850) += pll-da850.o +obj-$(CONFIG_ARCH_DAVINCI_DM355) += pll-dm355.o endif diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c new file mode 100644 index 0000000..88bf310 --- /dev/null +++ b/drivers/clk/davinci/pll-dm355.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PLL clock descriptions for TI DM355 + * + * Copyright (C) 2018 David Lechner + */ + +#include +#include +#include + +#include "pll.h" + +static const struct davinci_pll_clk_info dm355_pll1_info __initconst = { + .name = "pll1", + .pllm_mask = GENMASK(7, 0), + .pllm_min = 92, + .pllm_max = 184, + .flags = PLL_HAS_CLKMODE | PLL_HAS_PREDIV | PLL_PREDIV_ALWAYS_ENABLED | + PLL_PREDIV_FIXED8 | PLL_HAS_POSTDIV | + PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV, +}; + +static const struct davinci_pll_sysclk_info dm355_pll1_sysclk_info[] __initconst = { + SYSCLK(1, pll1_sysclk1, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + SYSCLK(2, pll1_sysclk2, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + SYSCLK(3, pll1_sysclk3, pll1, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(4, pll1_sysclk4, pll1, 5, SYSCLK_ALWAYS_ENABLED), + { } +}; + +static const struct davinci_pll_clk_info dm355_pll2_info __initconst = { + .name = "pll2", + .pllm_mask = GENMASK(7, 0), + .pllm_min = 92, + .pllm_max = 184, + .flags = PLL_HAS_PREDIV | PLL_PREDIV_ALWAYS_ENABLED | PLL_HAS_POSTDIV | + PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV, +}; + +static const struct davinci_pll_sysclk_info dm355_pll2_sysclk_info[] __initconst = { + SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV), + SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + { } +}; + +int __init dm355_pll1_init(struct device *dev, void __iomem *base) +{ + const struct davinci_pll_sysclk_info *info; + + davinci_pll_clk_register(dev, &dm355_pll1_info, "ref_clk", base); + + for (info = dm355_pll1_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(dev, info, base); + + davinci_pll_auxclk_register(dev, "pll1_auxclk", base); + + davinci_pll_sysclkbp_clk_register(dev, "pll1_sysclkbp", base); + + return 0; +} + +int __init dm355_pll2_init(struct device *dev, void __iomem *base) +{ + const struct davinci_pll_sysclk_info *info; + + davinci_pll_clk_register(dev, &dm355_pll2_info, "oscin", base); + + for (info = dm355_pll2_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(dev, info, base); + + davinci_pll_sysclkbp_clk_register(dev, "pll2_sysclkbp", base); + + return 0; +} diff --git a/drivers/clk/davinci/pll.c b/drivers/clk/davinci/pll.c index 7c56397..f72ea30 100644 --- a/drivers/clk/davinci/pll.c +++ b/drivers/clk/davinci/pll.c @@ -756,6 +756,8 @@ static const struct platform_device_id davinci_pll_id_table[] = { { .name = "da830-pll", .driver_data = (kernel_ulong_t)da830_pll_init }, { .name = "da850-pll0", .driver_data = (kernel_ulong_t)da850_pll0_init }, { .name = "da850-pll1", .driver_data = (kernel_ulong_t)da850_pll1_init }, + { .name = "dm355-pll1", .driver_data = (kernel_ulong_t)dm355_pll1_init }, + { .name = "dm355-pll2", .driver_data = (kernel_ulong_t)dm355_pll2_init }, { } }; diff --git a/drivers/clk/davinci/pll.h b/drivers/clk/davinci/pll.h index 545a156..6bd73d7 100644 --- a/drivers/clk/davinci/pll.h +++ b/drivers/clk/davinci/pll.h @@ -126,4 +126,7 @@ int da850_pll1_init(struct device *dev, void __iomem *base); int of_da850_pll0_init(struct device *dev, void __iomem *base); int of_da850_pll1_init(struct device *dev, void __iomem *base); +int dm355_pll1_init(struct device *dev, void __iomem *base); +int dm355_pll2_init(struct device *dev, void __iomem *base); + #endif /* __CLK_DAVINCI_PLL_H___ */ -- 2.7.4